5th Grade Adding and Subtracting Decimals Worksheets with Answers (Free PDF)

5th grade adding and subtracting decimals worksheet – Maths PDF

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This 5th grade adding and subtracting decimals worksheet covers adding and subtracting decimals (Common Core 5.NBT.B.7), with a free PDF to print.

Key takeaway: This worksheet helps fifth grade students practice adding and subtracting decimals with tenths and hundredths.

Topic: Adding and Subtracting Decimals (5th grade)
Content: 20 worksheet problems, from easy to challenging
Standards: 5.NBT.B.7
Answers: On a separate page, so you can try every worksheet problem first
Format: Free printable PDF, US Letter, black and white

This worksheet helps fifth grade students practice adding and subtracting decimals with tenths and hundredths. Also, grids, receipts, and measurements show how these skills appear in daily life.

There are 20 problems. The first six add decimals, including a grid, a whole number, and three addends. The next five subtract decimals with regrouping across zeros, and three more estimate and find a missing addend. Then, the last six are word problems about a receipt, change, jogging, a plant, swim times, and a budget. Also, allow about 35 minutes, and line up the decimal points every time.

These 20 problems practice adding and subtracting decimals to the hundredths (Common Core 5.NBT.B.7). You will line up the decimal points, use placeholder zeros, regroup, use a hundredths grid, and estimate to check that each answer makes sense.

The last six problems are word problems with money and measurements. Estimate first, then find the exact answer.

Grade 5 · Common Core State Standards: 5.NBT.B.7

5th grade adding and subtracting decimals worksheet: worksheet problems 1 to 10

1 – Add tenths

First, find the sum: $0.6+0.7$.

2 – Hundredths grid

Next, the grid shows 45 squares in blue and 38 squares in orange. Write the addition and find the sum.

Count the shaded squares.

3 – Line up the points

Then, find the sum: $3.5+2.25$.

4 – Add with regrouping

Now, find the sum: $14.78+6.45$.

5 – Whole number plus decimal

Also, find the sum: $8+3.64$.

6 – Three addends

First, find the sum: $2.5+4.75+10.2$.

7 – Subtract tenths

Next, find the difference: $1.2-0.7$.

8 – Subtract hundredths

Then, find the difference: $0.83-0.45$.

9 – Subtract from a whole number

Now, find the difference: $7-2.38$.

10 – Regroup across zeros

Also, find the difference: $20.5-7.38$. The picture shows the numbers lined up.

Line up the decimal points.

Worksheet problems 11 and up

11 – Larger difference

First, find the difference: $45.06-18.79$.

12 – Estimate a sum

Next, estimate $18.7+5.34$ by rounding each number to the nearest whole number. Then find the exact sum.

Fill in the blanks.

13 – Estimate a difference

Then, estimate $32.48-9.9$ to the nearest whole number. Then find the exact difference.

14 – Missing addend

Now, find the missing number: $5.6+\,?\,=9.25$.

15 – School store receipt

Maya buys a notebook for $\$3.49$, a folder for $\$1.75$ and markers for $\$2.30$. How much does she spend?

Maya’s receipt.

16 – Making change

Jamal pays for a baseball glove with a $\$20$ bill. The glove costs $\$13.68$. How much change does he get?

17 – Jogging miles

Aisha jogs 2.75 miles on Monday, 3.4 miles on Tuesday and 1.95 miles on Wednesday. How many miles does she jog in all?

Miles jogged each day.

18 – Growing plant

Then, a plant is 14.2 inches tall. It grows 3.75 inches. Then Liam trims 2.5 inches off the top. How tall is the plant now?

Worksheet problem 19 and after

19 – Swim times

Now, in a 50-yard race, Mei swims in 38.47 seconds and Priya swims in 36.9 seconds. How much faster is Priya?

The two times.

20 – Farmers market budget

Diego has $\$50$ at the farmers market. He buys tomatoes for $\$8.75$, corn for $\$6.40$ and honey for $\$12.95$. How much money does he have left?

Key facts behind this 5th grade adding and subtracting decimals worksheet

Key facts

Line up the decimal points so tenths are over tenths and hundredths are over hundredths.
Next, write placeholder zeros so both numbers have the same number of decimal places.
Regroup in decimals the same way you regroup whole numbers.
Then, estimate by rounding to the nearest whole number to check the answer.
Use the opposite operation to check: add the difference back to the subtracted number.

Common mistakes with this 5th grade adding and subtracting decimals worksheet

Students subtract a decimal from a whole number without writing zeros. Write the whole number as 8.00 first, then regroup.
Students stop regrouping at a zero in the top number. Also, regroup across the zero, one place at a time.
Students subtract the whole numbers only in a race story. Instead, line up the decimals and subtract every place.
Students line up the right edges of numbers with different lengths. Match the decimal points instead. Slow down at that step and check it twice.

Tips before you start the worksheet problems

Draw a thin vertical line through the decimal points. Finally, the line keeps your columns straight. Repeat this habit on every problem for the best results.
Estimate before you calculate on every word problem. Then compare your exact answer to the estimate. Repeat this habit on every problem for the best results.
Teachers can ask students to explain placeholder zeros in their own words. Repeat this habit on every problem for the best results.

Download the 5th grade adding and subtracting decimals worksheet as a PDF with the button below and keep it with your notes.

5th grade adding and subtracting decimals worksheet: frequently asked questions

How do you subtract decimals with regrouping?

Start at the right and regroup when the top digit is smaller. For 12.04 minus 5.68, regroup in the hundredths, then the tenths, then the ones. Work one place at a time and keep the points lined up.

How do you find a missing addend in decimals?

Subtract the known addend from the total. For a number plus 2.4 that equals 7.15, subtract 7.15 minus 2.40. Then add the answer back to 2.4 to check. A quick check like this takes only a few seconds and prevents most errors.

How do you make change from a twenty dollar bill?

Subtract the cost from 20.00. Regroup across the zeros as needed, and then add the change to the cost to check that you get 20. A quick check like this takes only a few seconds and prevents most errors.

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